25.43.7TC Rotary Shaft Grease-Oil Seal 25x43x7mm

25.43.7TC seal is Rubber Coated Oil or Grease Rotary Shaft Sealing, double lips with spring loader

Sizes: ID 25mm x OD 43mm x W 7mm

Match#: 25X43X7, TC25x43x7, 25437TC, 254307XX, 25x43x7TC

Oil seals have a flexible lip that rubs against a shaft or housing to prevent the leakage or contamination of fluids and debris

An oil seal normally consists of three basic components: The Sealing Element (the nitrile rubber part), the Metal Case, and the Spring. It is a widely used sealing component. The function of a seal is to prevent the leakage of medium along the moving parts. This is mainly achieved by the sealing element. Nitrile Rubber (NBR)

NBR is the most commonly used seal material. It has good heat resistance properties, good resistance to oils, salt solutions, hydraulic oils, and petrol, diesel and other gasoline products. Operation temperatures are recommended from -40° C to 120° C. It also functions well under dry environment, but only for intermittent periods.

Cross section of an R23 / TC style oil seal.

This is a double sealing lip seal arrangement with one primary sealing lip and a dust protection lip.